var aarr = [1,5,2,4,7,6,10];
var barr = ['a','b','f', 'e','z','j'];
document.write(aarr.sort(
	function(a, b){return a - b;}
), "<br>");
document.write("type of array: ", typeof(aarr), "<br>");
document.write("constructor: ", aarr.constructor, "<br>");
document.write(aarr.concat(barr), "<br>");
document.write(aarr, "<br>");
document.write("splice", aarr.splice(3), "<br>");
document.write(aarr, "<br>");

